EP3965921A4 - ZWITTERIONIC CHARGED COPOLYMER MEMBRANES - Google Patents

ZWITTERIONIC CHARGED COPOLYMER MEMBRANES Download PDF

Info

Publication number
EP3965921A4
EP3965921A4 EP20806675.3A EP20806675A EP3965921A4 EP 3965921 A4 EP3965921 A4 EP 3965921A4 EP 20806675 A EP20806675 A EP 20806675A EP 3965921 A4 EP3965921 A4 EP 3965921A4
Authority
EP
European Patent Office
Prior art keywords
copolymer membranes
charged copolymer
zwitterionic charged
zwitterionic
membranes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20806675.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3965921A1 (en
Inventor
Ayse Asatekin ALEXIOU
Samuel John LOUNDER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tufts University
Original Assignee
Tufts University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tufts University filed Critical Tufts University
Publication of EP3965921A1 publication Critical patent/EP3965921A1/en
Publication of EP3965921A4 publication Critical patent/EP3965921A4/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/06Flat membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12Composite membranes; Ultra-thin membranes
    • B01D69/1213Laminated layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/30Polyalkenyl halides
    • B01D71/32Polyalkenyl halides containing fluorine atoms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/40Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/401Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/82Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/22Esters containing halogen
    • C08F220/24Esters containing halogen containing perhaloalkyl radicals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/38Esters containing sulfur
    • C08F220/387Esters containing sulfur and containing nitrogen and oxygen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/14Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C09D133/16Homopolymers or copolymers of esters containing halogen atoms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/12Specific ratios of components used
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/02Details relating to pores or porosity of the membranes
    • B01D2325/0283Pore size
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/02Details relating to pores or porosity of the membranes
    • B01D2325/0283Pore size
    • B01D2325/02831Pore size less than 1 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/02Details relating to pores or porosity of the membranes
    • B01D2325/0283Pore size
    • B01D2325/028321-10 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/04Characteristic thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/18Membrane materials having mixed charged functional groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/28Degradation or stability over time
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/30Chemical resistance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/34Molecular weight or degree of polymerisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/38Hydrophobic membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/39Amphiphilic membranes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10Homopolymers or copolymers of methacrylic acid esters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
EP20806675.3A 2019-05-10 2020-05-08 ZWITTERIONIC CHARGED COPOLYMER MEMBRANES Pending EP3965921A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962846014P 2019-05-10 2019-05-10
PCT/US2020/032068 WO2020231797A1 (en) 2019-05-10 2020-05-08 Zwitterionic charged copolymer membranes

Publications (2)

Publication Number Publication Date
EP3965921A1 EP3965921A1 (en) 2022-03-16
EP3965921A4 true EP3965921A4 (en) 2022-12-28

Family

ID=73289489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20806675.3A Pending EP3965921A4 (en) 2019-05-10 2020-05-08 ZWITTERIONIC CHARGED COPOLYMER MEMBRANES

Country Status (9)

Country Link
US (1) US20220220241A1 (zh)
EP (1) EP3965921A4 (zh)
JP (1) JP2022533557A (zh)
KR (1) KR20220007075A (zh)
CN (1) CN113939358A (zh)
CA (1) CA3139542A1 (zh)
MX (1) MX2021013703A (zh)
SG (1) SG11202112411SA (zh)
WO (1) WO2020231797A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021160788A1 (en) * 2020-02-12 2021-08-19 Solvay Sa Methods for reducing or preventing colloids adhesion and/or fouling on different substrates, compositions, and copolymers useful therefor
WO2023195479A1 (ja) * 2022-04-08 2023-10-12 国立大学法人神戸大学 濾過膜及び該膜の製造方法
CN115069090B (zh) * 2022-07-20 2023-04-28 贵州省材料产业技术研究院 一种具有双电层表面的智能纳滤膜及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05239421A (ja) * 1992-02-26 1993-09-17 Nippon Junyaku Kk 制電性接着剤及びこれを用いた積層フィルム
JPH1090886A (ja) * 1996-09-10 1998-04-10 Nippon Paint Co Ltd 平版印刷用感光性樹脂組成物
US6251964B1 (en) * 1996-11-20 2001-06-26 Biocompatibles Limited Biocompatible compositions
CN102423646A (zh) * 2011-08-17 2012-04-25 浙江大学 一种用于分离有机物和盐的纳滤膜及其制备方法
JP2015150544A (ja) * 2014-02-19 2015-08-24 国立大学法人神戸大学 表面処理剤、表面処理ポリアミド逆浸透膜及びその製造方法
CN105542607A (zh) * 2015-11-25 2016-05-04 中国科学院兰州化学物理研究所 一种含甜菜碱型两性离子改性的丙烯酸酯自抛光防污涂料及其制备方法
JP6022827B2 (ja) * 2012-07-02 2016-11-09 国立大学法人神戸大学 ポリアミド逆浸透膜用の表面処理剤

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0316048B1 (pt) * 2002-11-07 2014-01-28 Copolímero com estrutura controlada e utilização de um copolímero
CN102294176B (zh) * 2011-08-17 2013-06-26 浙江大学 一种含两性离子的高渗透性纳滤膜及其制备方法
CN102294177B (zh) * 2011-08-17 2013-06-26 浙江大学 一种含有磺酸甜菜碱型两性离子的反渗透复合膜
WO2015070004A1 (en) * 2013-11-08 2015-05-14 Tufts University Zwitterion-containing membranes
US10525424B2 (en) * 2014-12-30 2020-01-07 Trustees Of Tufts College Zwitterionic copolymers for fouling resistant filtration membranes
CN109663510B (zh) * 2019-01-25 2021-07-23 苏州科技大学 两性离子无规共聚物P(MMAx-r-CBMAy)改性PVDF抗污膜及其制备方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05239421A (ja) * 1992-02-26 1993-09-17 Nippon Junyaku Kk 制電性接着剤及びこれを用いた積層フィルム
JPH1090886A (ja) * 1996-09-10 1998-04-10 Nippon Paint Co Ltd 平版印刷用感光性樹脂組成物
US6251964B1 (en) * 1996-11-20 2001-06-26 Biocompatibles Limited Biocompatible compositions
CN102423646A (zh) * 2011-08-17 2012-04-25 浙江大学 一种用于分离有机物和盐的纳滤膜及其制备方法
JP6022827B2 (ja) * 2012-07-02 2016-11-09 国立大学法人神戸大学 ポリアミド逆浸透膜用の表面処理剤
JP2015150544A (ja) * 2014-02-19 2015-08-24 国立大学法人神戸大学 表面処理剤、表面処理ポリアミド逆浸透膜及びその製造方法
CN105542607A (zh) * 2015-11-25 2016-05-04 中国科学院兰州化学物理研究所 一种含甜菜碱型两性离子改性的丙烯酸酯自抛光防污涂料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020231797A1 *

Also Published As

Publication number Publication date
CA3139542A1 (en) 2020-11-19
KR20220007075A (ko) 2022-01-18
US20220220241A1 (en) 2022-07-14
SG11202112411SA (en) 2021-12-30
MX2021013703A (es) 2022-01-31
WO2020231797A1 (en) 2020-11-19
EP3965921A1 (en) 2022-03-16
JP2022533557A (ja) 2022-07-25
CN113939358A (zh) 2022-01-14

Similar Documents

Publication Publication Date Title
EP3714525A4 (en) LOADING FRAME
EP3817131A4 (en) BATTERY
EP3950102A4 (en) SEPARATION MEMBRANE
EP3604395A4 (en) SEQUENCED COPOLYMER
EP4075633A4 (en) CHARGING DEVICE
EP3930031A4 (en) BATTERY
EP3961743A4 (en) BATTERY
EP4049216A4 (en) CRYPTOCURRENCY ACCEPTANCE SYSTEM
EP3965921A4 (en) ZWITTERIONIC CHARGED COPOLYMER MEMBRANES
EP3925999A4 (en) EXTRUSION MOLDABLE POLYESTER COPOLYMER
EP3996179A4 (en) BATTERY
EP3934006A4 (en) CHARGER DEVICE
EP3912855A4 (en) CONNECTING ELEMENT
EP4026694A4 (en) FLUORINE-CONTAINING COPOLYMER
EP4047694A4 (en) BATTERY
EP4012832A4 (en) BATTERY
EP3968628A4 (en) PROJECTION SYSTEM
EP4018510A4 (en) BATTERY
EP3998660A4 (en) BATTERY
EP3950560A4 (en) NEW LOWER CARRIAGE SYSTEM
EP4084122A4 (en) BATTERY
EP4032430A4 (en) FLUORINE-CONTAINING COPOLYMER
EP4005611A4 (en) DIALYSIS MACHINE
EP3958342A4 (en) BATTERY
EP3929505A4 (en) BUFFER BOTTLE

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211126

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20221130

RIC1 Information provided on ipc code assigned before grant

Ipc: C08F 220/18 20060101ALI20221124BHEP

Ipc: B01D 71/76 20060101ALI20221124BHEP

Ipc: B01D 71/28 20060101ALI20221124BHEP

Ipc: B01D 71/00 20060101AFI20221124BHEP

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240425